US2805136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive cloth and method of manufacturing
Assignee: Unifrax I LLC
•
Filing: 1955-11-18
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Granted: 1957-09-03
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Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph R O'neil
- 👤 Halsey W Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:07
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COATED ABRASIVE ARTICLE COMPRISING A CLOTH BACKING HAVING A LAYER OF ABRASIVE GRAINS ATTACHED TO A SURFACE THEREOF BY A HEAT-HARDENED SYNTHETIC RESIN BOND, SAID CLOTH CONTAINING A HYDROPHILLIC FILLING MATERIAL COMPRISING ESSENTIALLY A MAJOR PROPORTION OF STARCH (C6H10O5)N IN AND AROUND THE THREADS WHICH MAKE UP THE CLOTH AND A HEAT-HARDENED SYNTHETIC RESIN FILLING MATERIAL, WHICH IN ITS UNCURED CONDITION WAS HYDROPHILLIC AND OF LOW MOLECULAR WEIGHT, AND WHICH IS COMPATIBLE WITH THE RESIN BOND AND WHICH SURROUNDS THE FILLED THREADS AND AT LEAST PARTIALLY FILLS THE INTERSITCE THERBETWEEN.
Claim 2
Dependent Claim
91 words
A COATED ABRASIVE ARTICLE COMPRISING A CLOTH BACKING HAVING A LAYER OF ABRASIVE GRAINS ATTACHED TO A SURFACE THEREOF BY A HEAT-HARDENED SYNTHETIC RESIN BOND, SAID CLOTH CONTAINING A HYDROPHILLIC FILLING MATERIAL COMPRISING ESSENTIALLY A MAJOR PROPORTION OF STARCH (C6H10O5)N IN AND AROUND THE THREADS WHICH MAKE UP THE CLOTH AND A HEAT-HARDENED SYNTHETIC RESIN FILLING MATERIAL, WHICH IN ITS UNCURED CONDITION WAS HYDROPHILLIC AND OF LOW MOLECULAR WEIGHT, AND WHICH IS COMPATIBLE WITH THE RESIN BOND AND WHICH SURROUNDS THE FILLED THREADS AND AT LEAST PARTIALLY FILLS THE INTERSITCE THERBETWEEN.
References Cited (Backward Citations)
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Cited
US2128905A
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US2354350A
Cited
US2398224A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |